PLEASE HELP ME!!
consider an interaction between two mutually inhibiting proteins with concentrations x and y, given by the differential equations:
dx/dt = f(y)-x
and
dy/dt = g(x)-y
where both f(y) and g(x) are decreasing functions.
*show that equilibria occur when f[g(x)]=x
how do i do the asterick part? any help would be very much appreciated..